core: admin can remove contestant before contest start (#1196)

packages/ui-default/locales/ko.yaml

@@ -59,6 +59,9 @@ Active Sessions: 활성 세션
 Add module: 앱 모듈
 Add new data: 데이터 추가
 Add User: 사용자 추가
+Cancel Registration: 참가 취소
+Registration cancelled.: 참가가 취소되었습니다.
+Are you sure to cancel the registration of this user?: 이 사용자의 참가를 취소하시겠습니까?
 Add: 추가
 All {0} Contests: 전체 {0} 대회
 All Contests: 전체 대회
@@ -690,6 +693,7 @@ Their account will not be deleted and they will be with the guest role until the
 There are no contests...: 대회 없음
 There is no homework so far ╰(*°▽°*)╯: 과제 없음 ╰(*°▽°*)╯
 This contest is not live.: 대회가 실시간이 아닙니다.
+This contest has already started.: 대회가 이미 시작되었습니다.
 This email was sent by {0} automatically, and please do not reply directly.: '{0}으로 이메일을 보냈습니다.'
 This homework is not open and you cannot view problems.: 과제를 열지 않았기에 문제를 볼 수 없습니다.
 This homework is not open.: 과제가 아직 닫혀 있습니다.

packages/ui-default/locales/zh.yaml

@@ -87,6 +87,9 @@ Add prefix/suffix: 添加前缀/后缀
 Add suffix: 添加后缀
 Add testcase: 添加测试点
 Add User: 添加用户
+Cancel Registration: 取消报名
+Registration cancelled.: 报名已取消。
+Are you sure to cancel the registration of this user?: 确定要取消该用户的报名吗？
 Add: 添加
 Additional Files: 附加文件
 additional_file: 附加文件
@@ -966,6 +969,7 @@ There are no contests...: 没有比赛…
 There are no files currently.: 目前还没有文件。
 There is no homework so far ╰(*°▽°*)╯: 目前还没有作业 ╰(*°▽°*)╯
 This contest is not live.: 比赛没有开始。
+This contest has already started.: 比赛已开始。
 This email was sent by {0} automatically, and please do not reply directly.: 这封邮件由 {0} 自动发送，请勿直接回复。
 This homework is not open and you cannot view problems.: 该作业还未到开放时间，您无法查看作业题目。
 This homework is not open.: 该作业还未开放递交。

packages/ui-default/locales/zh_TW.yaml

@@ -87,6 +87,9 @@ Add prefix/suffix: 新增字首/字尾
 Add suffix: 新增字尾
 Add testcase: 新增測試點
 Add User: 新增使用者
+Cancel Registration: 取消報名
+Registration cancelled.: 報名已取消。
+Are you sure to cancel the registration of this user?: 確定要取消該使用者的報名嗎？
 Add: 新增
 Additional Files: 附加檔案
 additional_file: 附加檔案
@@ -962,6 +965,7 @@ There are no contests...: 沒有比賽…
 There are no files currently.: 目前還沒有檔案。
 There is no homework so far ╰(*°▽°*)╯: 目前沒有功課 ╰(*°▽°*)╯
 This contest is not live.: 比賽沒有開始。
+This contest has already started.: 比賽已開始。
 This email was sent by {0} automatically, and please do not reply directly.: 這封郵件由 {0} 自動傳送，請勿直接回復。
 This homework is not open and you cannot view problems.: 功課尚未開放，不能檢視題目。
 This homework is not open.: 功課尚未開放遞交。